Draft-gear.



'0. A. CARSCADIN & e. A. WOODMAN.

DRAFT GEAR. APPLICATION FILED MAY 28. I915.

Patenied Dec. 1?, 1918.

2 SHEETS-SHEET I.

1,287,633. Q) J6 1Q IIII' c. A. CARSCADIN age; A. WOODMAN! DRAFT GEAR. APPLICATION FILED MAY 28. I915- I Patented Dec. 17,1918.

"2 SHEETSH-SHEET 2 Jaw/ w an Q ma, 1

us ATENT OFFICE.

CHARLES A. GARSCADIN AND GEORGE A. WOODMAN, OF CHICAGO, ILLINOIS, ASSIGNORS, BY MESNE ASSIGNMENTS, TO AMERICAN STEEL FOUNDRIES, OF CHICAGO, ILLINOIS,

A CORPORATION OF NEW JERSEY.

DRAFT-GEAR.

Specification of Letters Patent.

Patented Dec. 17, 1918.

Application filed May 28, 1915: Serial No. 30,901.

I the United States, both residing at Chicago,

in the county of Cook and State of Illinois, have jointly invented certain new and useful Improvements in Draft-Gears, of whlch the following is a specification.

This invention relates in general to draft gears and more particularly to that type of draft gears in which tandem springs are employed, both of which are utilized 1n independently transferring the pulling and bu ifing forces from the draw-bar to the draft arms.

It is an object of our invention to provide means employing a minimum number of relatively simple and inexpensive parts for transferring the forces applied to the drawbar directly to a plurality of springs arranged in tandem and thence to the draft arms at a plurality of points.

A further object of our invention is to provide a draft gear in which rigid. connect-ions between the butt of'the draw-bar and the yoke are eliminated and whereby pulling and buffing forces are transferred from the draw-bar to the draft arms simultaneously at a plurality of points.

A still further object of our invention is the provision of means whereby bufiing forces are transferred from the draw-bar to the draft arms without subjecting the yoke to the stresses thereof.

Other objects and advantages of themvention will be apparent as it is better understood by reference to the following specifi cation when read in connection with the accompanying drawing in which- Figure 1 is a side elevation, partially in section, of a draft vention;

Fig. 2 is a plan view of the underside thereof;

Fig. 3 is a side elevation similar to Fig. 1 of a slightly different form of the invention' Fig. 4 is a vertical section on the line H of Fig. 3, and

Figs- 5, 6 and 7 are side elevations partially in section showing slightly different forms of our invention.

Referring to Figs. 1 and 2 of the drawi g .1 nd c t s-a draw-bar rovided with a gear according to our in- I utt 2, which is adapted to be embraced by the endof the yoke 3 and held from movement in one direction longitudinally thereof by the flanges 4 at the forward end of the yoke 3 Thebutt 2 is prevented from sidewise dlsplacement by an integral portion 5 at one side of the yoke and by a removable to be held in position on the yoke 3 by a bolt member 6 at the other side thereof adapted ing understood that while two springs are shown, one within the other, one of these springs may be omitted, if desired. A rod 15 extends between the freely movable follower plates 9, passing through an opening 16 in the foremost follower plate 10. The rod 15 is adapted to transfer forces directly between the follower plates 9.

Disposed on either side of the yoke 3, and secured in any suitable manner to the body of the car, are the draft arms 17 provided with oppositely disposed lugs 18 forming shoulders, against which the follower plates 9 and 10 rest, and adapted to prevent movement of each of the follower plates in one direction longitudinally of the draft arms. From an examination of Fig. 2 of the drawings it will be readily understood that the follower plates 9 are prevented from forward movement while the follower plates 10 are prevented from rearward movement by these shoulders.

It is believed that the operation of my device will be readily apparent without further description of the structure thereof. When pulling forces are exerted on' the draw-bar 1 I cation of bufl ing forces to the draw-bar 1, the

butt 2 thereof will move rearwardly in the yoke, carrying with it the follower plates 9, the rearmost follower plate 9 being actuated through the rod 15. The springs 13 and 14 will be compressed between the plates 9 and .10, the latter being held from rearward movement by the shoulders on the draft arms 17. In either case the forces are transferred from the draw-bar through the springs, independently, to the draft arms at a plurality of points and it will be readily understood that buflin forces, which are most severe, are trans erred to the draft arms without subjecting the yoke to the stress of such forces.

. t- =Referring to Figs. 3 and 4 ofthe drawings,

the structure of this form of my invention is identical with that previously described, except that the follower plate 10 is formed integral with the yoke 3, as best shown in Fig. 1. The operation of the device is identical with that of the form of invention shown inFigs. 1 and 2.

In Figs. 5and 6 two forms of the invention are shown in each of which the rod .15 is made integral with the follower plate 9' and in Fig. 6 the'rod 15 extends through an opening'in the foremost follower plate 9" to engage directly with the butt 2 of the draw-bar. The follower plate .10 in Fig. 5

is as shown in Fig. 1, while the follower plate 10 in Fig. 6 is made integral with the yoke 3, as in Figs. 3 and 4. The structure is otherwise identical and the operation of these two forms of our invention does not differ from that described in connection with Figs. 1 and. 2.

In Fig. 7 we disclose a form of ourminvention in which the rod 15 is formed integral with the foremost coupler plate 9 and in which the rearmost follower plate 9 is provided with a rod 19 extending rearwardly through the rearmost follower plate 10" and through the end 11' of the yoke 3. The operation of this form of our invention is idencombination of a yoke, a draw bar shank embraced by and having a keyless connection with said yoke and adapted for longitudinal movement with respect thereto, a plurality of sets of followers, springs disposed between said followers, and: means connecting memes,

the front followers of the first and second sets whereby bufiing forces are applied directly to the several sets of followers by the action of the shank against the front follower of the first set without movement of the yoke;

2. A draft rigging comprising in combination a yoke, a draw-bar having a shank.

and t rough them to the draft arms at a plurality of points.

3. A draft gear of the class described, in combination a yoke, a draw-bar having a butt engaged by and having a keyless connection with said yoke, a plurality of sets of followers, the butt and yoke being removably connected by a strap whereby the shank is longitudinally movable in said yoke under buff, means associated with said yoke for positively moving the rear followers of each set therewith, means associated with the front followers of each set whereby said followers are simultaneously moved toward the rear followers when the shank is moved rearwardly in said yoke under buff against the first follower of the first'set.

4. A draft gear of the class described, comprising in combination a shank, a yoke having a keyless sliding connection with respect to said shank, a plurality of sets of followers one follower of each set being movable with the yoke, one follower of each set being movable in both directions with respect to the yoke, means associated with the front followers of the several sets whereby motion is imparted thereto by the shank being moved rearwardly in the yoke under buff transferring to the tther followers the bufling forces delivered to the front follower of the first set by said moving followers through said springs.

5. In a device of the class described, the combination of a yoke, a draw-bar having a keyless connection with said yoke, the butt engaging one end of said yoke and adapted for longitudinal movement with respect thereto, a plurality of sets of followers, one follower of each set being freely movable in both directions longitudinally with respect to said yoke, the other follower of each set being movable only with the yoke, springs disposed between said followers, draft arms having oppositely disposed lugs adapted to be engaged by the respective followers, and

to limit the lateral movement thereof longitudi ally in said draftarms wl'lereby force set and the'strains thereof transferred to the applled to sald draw-bar is slmultaneously draft arms wlthout movement of the Yoke.

transferred to said draft arms at a plurality CHARLES A. CARSCADIN. of points, and a rod connecting the front fol- GEORGE A. WOODMAN. 5 lowers 0f the first and second sets whereby Witnesses:

bufling forces applied to the front follower ERNEST H. MERCHANT, of the first set are transferred to the second W. T. Vrcs rmrsme.

fioypieaof this patent may be obtained for five cents each, "by addressing the fiemmisaioner o2 Eetents. 7 Washington, 33. Q, 

